210.77.8.0/21

AS7497 · Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)

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Summary

Country	China
Domain	cnic.cn
ASN	AS7497
Parent Range	210.77.0.0/19
Registry	APNIC
ID	CSTNET-CN

WHOIS Details

inetnum:        210.77.0.0 - 210.77.31.255
netname:        CSTNET-CN
descr:          Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
country:        CN
org:            ORG-CA107-AP
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
abuse-c:        AC2741-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CSTNET-CN
mnt-routes:     MAINT-CSTNET-CN
mnt-irt:        IRT-CSTNET-CN
last-modified:  2023-10-10T01:38:39Z
source:         APNIC

irt:            IRT-CSTNET-CN
address:        2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
e-mail:         abuse-ip@cstnet.cn
abuse-mailbox:  abuse-ip@cstnet.cn
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
auth:           # Filtered
remarks:        abuse-ip@cstnet.cn is invalid
mnt-by:         MAINT-CSTNET-CN
last-modified:  2026-02-11T13:10:17Z
source:         APNIC

organisation:   ORG-CA107-AP
org-name:       CNIC-CAS
org-type:       LIR
country:        CN
address:        2 Dongsheng South Road, Haidian District
phone:          +86.10.58812266
e-mail:         support@cnic.cn
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:18:50Z
source:         APNIC

role:           ABUSE CSTNETCN
country:        ZZ
address:        2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
phone:          +000000000
e-mail:         abuse-ip@cstnet.cn
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
nic-hdl:        AC2741-AP
remarks:        Generated from irt object IRT-CSTNET-CN
remarks:        abuse-ip@cstnet.cn is invalid
abuse-mailbox:  abuse-ip@cstnet.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-02-11T13:11:38Z
source:         APNIC

role:           Computer Network Information Center of Chinese Academy of Sciences administrator
address:        2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
country:        CN
phone:          +86.10.58812266
e-mail:         supervise@cnic.cn
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
nic-hdl:        CNIC1-AP
mnt-by:         MAINT-CNICOCAOS-CN
last-modified:  2022-05-12T07:31:01Z
source:         APNIC

route:          210.77.0.0/19
descr:          China Science & Technology Network
country:        CN
origin:         AS7497
mnt-by:         MAINT-CSTNET-CN
last-modified:  2023-10-06T05:09:24Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 210.77.8.0/21

Range	ASN	Company	Num of IPs
210.77.0.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192

Nearby Ranges

BGP prefixes that overlap with 210.77.0.0/16

Range	ASN	Company	Num of IPs
210.77.224.0/19	AS4808	China Great Wall Network	8,192
210.77.128.0/19	AS23724	21ViaNet(China),Inc.	8,192
210.77.192.0/19	AS4808	China Broadcasting Shandong Network Co., Ltd. Jinan Branch	8,192
210.77.0.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192
210.77.64.0/19	AS7497	Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	8,192
210.77.176.0/20	AS18241	State Power Information Net	4,096
210.77.176.0/20	AS9814	State Power Information Net	4,096

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

2 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
210.77.11.205	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`3.51ms` from Beijing, CN
210.77.10.100	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`4.08ms` from Beijing, CN

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
4.30.229.133	AS3356 Level 3 Parent, LLC	`0.67ms` from Ashburn, US
146.229.165.181	AS10364 University of Alabama in Huntsville	`6.14ms` from Atlanta, US
93.234.184.85	AS3320 Deutsche Telekom AG	`2.99ms` from Duesseldorf, DE
129.16.55.181	AS2841 Chalmers University of Technology	`0.92ms` from Goeteborg, SE
1.180.156.69	AS4134 CHINANET-BACKBONE	`6.69ms` from Hohhot, CN
212.3.106.165	AS6702 Science Production Company "Trifle" Ltd.	`7.07ms` from Kyiv, UA
176.67.167.21	AS13213 THG HOSTING LIMITED	`0.35ms` from London, GB
5.28.49.69	AS42010 I.T. PROFESSIONAL SERVICES LIMITED	`7.47ms` from London, GB
70.183.21.117	AS22773 Cox Communications Inc.	`1.82ms` from Los Angeles, US
83.40.169.69	AS3352 TELEFONICA DE ESPANA S.A.U.	`9.41ms` from Madrid, ES
75.73.149.229	AS7922 Comcast Cable Communications, LLC	`3.23ms` from Minneapolis, US
84.150.145.37	AS3320 Deutsche Telekom AG	`4.91ms` from Nuernberg, DE
97.134.202.213	AS6167 Verizon Business	`14.31ms` from Richardson, US
177.33.92.229	AS28573 Claro NXT Telecomunicacoes Ltda	`5.70ms` from Sao Paulo, BR
196.51.105.149	AS400463 DynaNode LLC	`0.61ms` from Seattle, US
18.180.28.165	AS16509 Amazon.com, Inc.	`0.19ms` from Tokyo, JP
210.156.174.181	AS2527 Sony Network Communications Inc.	`19.21ms` from Tokyo, JP
173.48.76.149	AS701 Verizon Business	`1.60ms` from Boston, US
201.88.219.53	AS8167 V tal	`4.78ms` from Brasilia, BR
34.79.82.21	AS396982 Google LLC	`0.13ms` from Brussels, BE
102.46.207.21	AS8452 TE-AS	`4.38ms` from Cairo, EG
197.147.227.245	AS36884 Wana Corporate	`10.53ms` from Casablanca, MA
66.61.194.85	AS11426 Charter Communications Inc	`1.50ms` from Charlotte, US
74.193.161.53	AS19108 Optimum	`17.54ms` from Dallas, US
24.248.68.181	AS22773 Cox Communications Inc.	`11.90ms` from Dallas, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -m10 210.77.8.142

traceroute to 210.77.8.142 (210.77.8.142): 10 hops max, 52 byte packets

1 [AS15169] 72.14.232.209 1.248 ms

2 *

3 *

4 [AS3491] 63.220.198.25 36.951 ms

5 [AS7497] 159.226.254.229 69.94 ms

6 [AS7497] 159.226.254.237 68.798 ms

7 [AS7497] 159.226.254.162 69.506 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Singapore, SG

On March 13th 2026

What are IP address ranges?

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